Home / 3,579.21-4,939.27-2,254.65

Finding the Fourth Proportional to 3,579.21, 4,939.27 and 2,254.65

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Solution

The fourth proportional to 3,579.21, 4,939.27 and 2,254.65 is: 3,111.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.21 : 4,939.27 = 2,254.65 : x
  2. Step 2: Convert to fraction form
    3,579.21/4,939.27 = 2,254.65/x
  3. Step 3: Cross multiply
    3,579.21x = 4,939.27 × 2,254.65
  4. Step 4: Simplify right side
    3,579.21x = 11,136,325.11
  5. Step 5: Solve for x
    x = 11,136,325.11/3,579.21
  6. Step 6: Final answer
    x = 3,111.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.